/*
 * @Author: your name
 * @Date: 2021-12-17 10:29:13
 * @LastEditTime: 2021-12-17 10:32:35
 * @LastEditors: Please set LastEditors
 * @Description: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 * @FilePath: \day9\demo\index.js
 */

let str:string="hello world,this is Coding-World"

class World{
    
}
new World()
